US635262A - Trolley-wheel. - Google Patents

Description

N0; 635,262. Patented Oct. I7, 1899.

J. H. 8v. G. H. LESTER. TROLLEY WHEEL.

(Application filed Jan. 81, 1899.)

(lo Iodel.)

UNITED STATES PATENT EEicEe JOHN H. LESTER AND GEORGE H. LESTER, OF NE\V YORK, N. Y.

TROLLEY-WHEEL.

SPECIFICATION forming part of Letters Patent No. 635,262, dated October 17, 1899.

Application filed January 31, 1399. Serial No. 703,970. (No model.)

To all whom, it may concern.-

Be it known that we, JOHN H. LEsrEE and GEORGE l-I. LESTER, citizens of the United States,and residents of New York, Brooklyn,) in the county of Kings and State of NewYork, have jointly invented a new and useful Improvement in Trolley-Wheels, of which the following is a specification.

Our invention relates to an improvement in trolley-wheels in which the rim and body of the wheel are composed of soft electrical conducting metalsuch, for instance, as brass-provided with a central socket, a cylindrical sleeve of hard metal forming a lining for the curved wall of the said socket, a disk of hard metal forming a lining for the base of the socket, a removable hard-metal cover for the mouth of the socket, and a series of bearing-rollers held in position within the sleeve by the cover.

A practical embodiment of our invention is represented in the accompanying drawings, in which Figure 1 represents a side view of our improved trolley-wheel and a portion of its support. Fig. 2 is an edge view of the same. Fig. 3 is a central section in the plane of the line 3 3 of Fig. 2,the said section being taken at right angles to the wheel-bearing spindle; and Fig. 4 is a transverse vertical section in the plane of the line et at of Fig. 1.

The forked end of the trolley-wheel support is denoted by A, the branches of the fork within which the spindle B is mounted being denoted by a a The rim and body portion of the Wheel are denoted by O, and they may be made of some suitable soft electrical conducting metal, as is usualsuoh, for instance, as brass. The rim is provided with the usual circumferential groove 0. One side of the rim and body portion 0 of the wheel is provided with a recessed seat cfor the reception of aremovable cover, to be hereinafter described. The rim and body portion are further provided with a central cylindrical socket 0 extended inwardly from the seat 0' to a point near the opposite side of the rim and body portion. A disk D, of hard metal, is fitted into the base of the socket c and forms a lining therefor. A cylindrical sleeve (Z is inserted within the central socket 0 which sleeve is of suflioient width to form a lining for the curved wall of the socket, the inner end of said sleeve resting against the disk D and the outer end preferably flush with the base of the seat 0.

d represents a hard-metal cover for the mouth of the socket, which cover is removably secured within the seat 0 by screws (1 which enter the body portion 0 of the wheel. The cover d is provided with a central hole (F, the lining-disk D with a central hole (1, and the body portion with a central hole a, corresponding with the holes d and d. The spindle B passes through the holes (1 (1"0, which holes are of slightly-greater diameter than the spindle.

An annular series of hard-metal bearingrollers F are located within the central socket in the wheel and are interposed between the cylindrical sleeve cl and the spindle B. These bearing-rollers are held in their position by the removable hard-metal cover (1. Antifriction-washers E are interposed between the sides of the wheel and the branches of the forked support around the spindle B.

By the structure hereinabove described the life of the trolley-wheel is materially increased, its conductivity is not impaired, and it runs with much greater freedom, because of the use of the antifriction-bearing. All of the wearing parts of the bearing are made of hard metal, while the body and rim of the wheel are still made of a soft electrical conducting metal, so that the wear upon the conducting-wiresis reduced to aminimum. Hy thus mounting the wheel so that it will not become clogged and stopped the danger of scoring the groove 0 is obviated.

It is evident that slight changes might be resorted to in the form and arrangement of the several parts without departing from the spirit and scope of our invention. Hence we do not Wish to limit ourselves strictly to the structure herein set forth; but

that we claim is In combination, a trolley-wheel comprising a rim and body of soft electrical conducting metal provided with a central cylindrical socket extended inwardly from one side of the body a distance sufficient to leave apertion of the body between the base of the friction-bearing for the wheel, substantially as set forth.

In testimony that we claim the foregoing as presence of two witnesses, this 30th day of January, 1899.

JOHN H. LESTER. GEORGE ll. LESTER.

Witnesses:

FREDK. HAYNES, GEORGE BARRY, Jr.

our invention we have signed our names, in T5

Images